46 C.F.R. § 78.15-1 Subdivision bulkheads.
Title 46 - Shipping
(a) All watertight doors in subdivision bulkheads shall be kept closed during navigation except when necessarily opened for working of the vessel, and in such cases they shall always be ready to be immediately closed. (b) [Reserved]
Title 46: Shipping
PART 78—OPERATIONS
Subpart 78.15—Doors Closed at Sea
§ 78.15-1 Subdivision bulkheads.
